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  • Writer's pictureDr. John Kandare

How do I change the filter in my hearing aid?

In most, but not all, hearing aids, there is a filter that prevents wax from accumulating into the speaker. The speaker is the unit that is most responsible for delivering the sound into the ear and oftentimes, is in the ear canal. As such, the speaker is exposed to cerumen (earwax) and perspiration. The filter prevents the debris from getting into the speaker and damaging crucial parts of the hearing aid vital for proper function. I often get a call from a patient that their hearing aid isn't working, and in most, but of course not all, of those cases, replacing the wax filter is the correct procedure in restoring proper functioning. Replacing the wax filter is an easy process that can be accomplished with relative ease (providing good dexterity and vision). Follow these steps as a general guideline as there may be some variance between each hearing aid and its procedure for replacing the wax guard. Consult your hearing aid user manual for specific instructions or contact your audiologist or hearing care professional with specific steps necessary for your exact hearing aid model.

  1. Identify the Filter Location: Most hearing aids have the wax filter located at the end of the earpiece that goes into your ear. It may look like a small white disk or mesh.

  2. Prepare the Tool: Many hearing aids come with a special tool for changing the filter. This tool usually has two ends: one to remove the old filter and another to insert a new one.

  3. Remove the Old Filter: Insert the removal end of the tool into the old filter. It should fit snugly. Gently pull the tool out, and the old filter should come with it. If your model uses a different method, follow the specific instructions for removing the filter.

  4. Insert the New Filter: Take a new filter, and using the insertion end of the tool, align it with the opening where the old filter was located. Make sure it is seated properly without pushing too hard, as this might damage the hearing aid.

  5. Check the Fit: Make sure the new filter is flat and secure. It shouldn’t protrude or be inserted unevenly.

  6. Test the Hearing Aid: Before using it, test the hearing aid to ensure it’s working properly. Any change in sound quality could indicate that the filter was not installed correctly.

  7. Dispose of the Old Filter: Safely dispose of the old filter to avoid any small parts hazards.

If you’re unsure or encounter any issues during the process, it might be a good idea to visit your audiologist or a hearing aid specialist who can demonstrate how to change the filter correctly. Even if you didn't get your hearing aids from us at Chagrin Hearing Center, we would be happy to help you with any issues that you might be having with your hearing aids.


“Dr. John is wonderful: highly professional, very personable, and with a doctorate from the University of Pittsburgh, his office is just as exemplary. Clean, comfortable, very modern, and well-equipped for service and fittings. Fully recommend.”

- Rob M.



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